Lubricator



(No ModeL) F. J. RENCHARD.

LUBRIGATUR. l

No. 315,551- Patented Apr. 14,1885.

Mam'

VWmesses: Inventor:

STA-TES-y reANCIs J. RENCHARD,

'PATENTV OFFICE;

or DETROIT, MICHIGAN.

LUBRICATCR.'

SPECEFICATION forming part. of Letters Patent No. 315,551, dated April14, 18.85. V Application tiled November l0, 1884. (No modul.) u

r of Michigan, have invented a new and useful Improvement inLubricators, of which the fol lowing is a specification.

My invention relates to that class of lubricators in which the oil issupplied in limited quantities as it is displaced by water, the productof condensation being admitted to the oilchamberin carefully-regulatedquantities.

It has for its object the production of a compact and cheap apparatuswhich may be attached directly to the top of a horizontal steam-pipe,orto the top of the steam-chest or other part to be lubricated; and itconsists in the use of an internal water and steam chaml,

ber and an exterior oil-chamber cast in one piece and connected by suchpipes, and com-.

this specification, Figurelis a vertical sec-` tion. Fig. 2 is anelevation, partly in section. Fig. 3 is a horizontal section on the linex of Fig. 1.

The same letters are employed in all the iigures inthe indication of theidentical parts.

The external cylinder, A, and the internal cylinder, B, are concentricand cast inone piece, being united bythe neckG, -extended to the outsidein the stud-c. Opposite to the latter, and projecting in like mannerbeyond the cylindrical shell A, is the stud c', these studs being boredout and threaded internally to receive the threaded stems -of the valvesE and F, and externallytoreceive the correspondingly-threadedstuiiing-boxes e and f. The cylindrical shell A is closed at the top bythe screw-plug G, and at the bottom by the vertical tubular plug D,which contains two parallel ducts, 1 and 3, and is inserted into theopening a2 in the bottom of the cylinder A, and tapped into'threadedannular flange b2 on the lower end of internal cylindrical shell,

' B. rIhe jam-nut L, set firmly against the end of cylinder A, holds theplug D in place and packs the joint between the plug and the cyl- Iinder. The lowerend of the plug D has cut upon its yperiphery a threadof coarser pitch than that of the plug at Z, and by this the lubricatormay be attached to a horizontal steampipe, or to the top ofthesteam-chester other part to be lubricated.` The cylindrical shell B isclosed at the top b by the screw plug or cap forms the standard orsupport for the entire apparatus.

dieular hole to receive the connecting-pipe O, which leads from tube 2inside the valve-seat to the. duct 3, and thence to the dischargeoriticeo. The pipe O is closed at its upper lend, andhas its lower end tappedinto the -upper end of plug D at the upper end of the duct 3. Anothervertical pipe, S, opensnear the top of the chamber, andis tapped intothe end of the plug D at the upper end of the duct 1, terminatingbelowin the orice s.

hole, P, through the projection d, formed by cut off or opened more orless by the adjustment of thevalve F. The pipe m communiof theindicator-glass K, which is a glass tube held between glass holders Nand N and made tight bythe packing-rings m, n. The lower glass holder,N', communicates with the 4interior of -Tthe chamber A by the tube J,and with the open air when the tents of chamber A to flow out through aduct nected with the outside by holes opening into thestem andimmediately below the seat.

The apparatus thus constructed is operated as follows: The plug orstandard D being tapped into the steam-pipe or steam-chest, the plus theexternal chamber, A, when the plug is replaced. When steam is admittedto the pipe and pipes 1 and S and ll gradually the interior H, and atthe bottom by the plug D, which p. 6c vIt has at' the top a stud, d,bored,v with a horizontal tube, 2, the end of which r .y forms a seatfor the valve E, and a perpen` thickening the shell at that point incasting. j This duct Bleads Vfromnear the bottom of the chamber to thebranch pipem,(being closed at r the top,) with which its communicationmaybe p cates by means of the pipe T with the interior4 formed in thelmiddle of valve-stem and con` Another tube is formed within the shell Bby boring "a I drain-valve U` is with- `drawn from ,its seat, so as toallow thel cona recessed chamber around the upper end of G beingremoved, oil is poured in to lill or chest, it will rush in through theorice s,

. the pipe 2,

chamber, B, with water, the product of condensation. If, now, the valveF is slightly opened, this Water will ilow up the duct P, past thevalve, and through the pipes m and T, into the interior of theindicator-glass K. As this glass has an opencommunication through J withthe interior of the chamber A, the oil will stand in the indicator-glassat the same level as in the chamber, and the Water, coming through m Tand falling onto the oil, will sink through the same in visiblequantities, and the valve E having been opened will displace an equalquantity of oil, which, escaping through Will ilow down the tubes O and3 V'and be'discharged through the orifice o. By

this means oil may be supplied to the part to be lubricated inquantities regulated at the will of the operator, and as it descendsthrough the oil the ,Water will be risible and indicate to the eye therate at which the oil is being fed. As the apparatus is placedimmediately over the place where its work is to be performed, all itsoperations are performed by the direct force of gravity and with aminimum of loss. The steam and water chamber B being placed in theinterior ofthe oilchamber and in constant connection with thesteam-boiler when the apparatus is at work, it follows that the oil willbe maintained in a state of uidity.

While I have presented the apparatus in the best form known to me, it ismanifest that it may be modified in form and yet retain the essentialprinciple of operation. Thus it is not essential that the steam andwater cylinder should be entirelyincl osed by the oil-cylin der, as theoil can be maintained in a liquid condition under ordinary exposureWithout such entire inclosure. So the feed will be continued in the sameway, although the tube K maybe opaque and the position of the valve andpipes may be changed; nor is it essential that the two cylinders' shouldbe cast in one piece, though that is the cheaper way to make them, andother changes may be made, still retaining the practically-essentialfeatures of my invention by `which it is distinguished from othersbefore known-viz., an oil-chamber inclosing a steam and Water chamber tosuch'anY extent as to maintain the fluidity ofthe oil under ordinaryconditions of exposure, the ducts and valves controlling the outflow ofwater and of the oil as it is displaced by the Water.

Iam aware that a steam-induction pipe leading to a water and steamchamber placed What I claim as my invention, and .desire to secure byLetters Patent, is-

l. A lubricator having an oil-chamber surrounding and inclosing aninterior steam and Water chamber, in combination with a transparent tubefilled normally with oil, through which the water falls in visiblequantities in its course from the water-chamber to the bottom of theoil-chamber, substantially as set forth.

2. In combination with au exterior oil-chamber, au interior water audsteam chamber, a valve, F, and tube for admitting water from the latterto the former in regulated quantities, and a tube for discharging oilfrom the upper part of the oil-chamber as it is displaced by waterintroduced into said chamber, substantially as set forth.

3. The exterior oil-chamber and interior water and steam chamber cast inone piece and connected by the neck C, substantially as set forth.

4. The combination of an exterior oil-chamber, A, an interior Water andsteam chamber, B, and the plug D, connecting the two, and also forming astandard to support them both at the same time that it forms anextension of the interior pipes, S and O, substantially as set forth.

5. The combination of the exterior and interior chambers A and B, theplug D, counecting the two, the steam and oil pipes 1 S and 3 O, theWater-pipe P, and valves E and It-O F, arranged in relation thereto,substantially as set forth.

As Witness my hand executed in the pres ence of two subscribingWitnesses.

FRANCIS J. RENGHARD.'

In presence of- WILLIAM MAY, JOHN MARSHALL.

